Compute the G value given lamda (the parameter of ellipsoidal function) and beam direction.
Compute the G value given lamda (the parameter of ellipsoidal function) and beam direction.
computeGEllip(lambda, theta)
Arguments
lambda: The parameter of ellipsoidal function given leaf angle distribution mearuements.
theta: The zenith angle of beam direction.
Returns
The G value.
Examples
computeGEllip(1.0,30)
References
Wang, W. M., Li, Z. L., & Su, H. B. (2007). Comparison of leaf angle distribution functions: effects on extinction coefficient and fraction of sunlit foliage. Agricultural and Forest Meteorology, 143(1), 106-122.